The two-goal lead was harsh on Southampton going into half time, but it nearly got worse in the opening stages of the second half when Mane's acrobatic effort was blocked and fell at the feet of Salah, although this time the prolific winger scooped his finish over the crossbar.

Firmino collected the ball from Salah before producing an exquisite flick back into the Egyptian's path, and Salah made no mistake with his finish into the bottom corner for his 29th goal of the season.

The Dutch defender completely missed his kick when trying to deal with a long ball and Salah pounced in a flash, showing great awareness to square to Firmino, who confidently slotted past Alex McCarthy.